It revived the Android menu button. root is not required. Let’s regain the menu display of the app. Further buttons can be displayed, “Home”, “Back”, “Resents”. You can use as an alternative to the failed physical button.

[Basic functions] – Display of the menu buttons – The position of the button, size, transparency, color, customize the icon – Display of the notification bar – The presence or absence of vibration

[Application] Buttons can be added freely, you can customize the operation at the time of tap and long press.

[Keyboard switching] When you press the menu button, send the Menu key from the keyboard (IME), you call up the menu of the app in the display. When you press the button, if the keyboard is not a menu button IME, because the keyboard selection is displayed, Please temporarily switching. Then, when performing the character input will return the keyboard at the touch of a button.